RE: [Algorithms] ROAM

[Charles B. <cb...@cb...>]

At 04:57 PM 11/28/2002 -0000, Tom Forsyth wrote:
>True, but for a real apples-to-apples comparison it probably needs to be in
>the same framework/application. Also, Thatcher's chunk-lod is yet _another_
>separate case because he's doing vertex morphing as well, which again pushes
>CPU time up but also increases quality-per-triangle.

The morph can be done in a vshader at the cost of more bandwidth.
Anyway, with terrain, the problem is not actually rendering, it's
managing the huge amount of data needed.  You could render the entire
earth at apparent 1-pixel screenspace error - the speed of the
algorithms is not the problem - it's the fact that the dataset is
collosal.

Clever paging and streaming are much harder than the rendering bits.

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Charles Bloom    cb...@cb...    http://www.cbloom.com